c2b1525908
This brings significant modularization to the Action API's parameter validation, and allows the Action API and MW REST API to share validation code. Note there are several changes in this patch that may affect other code; see the entries in RELEASE-NOTES-1.35 for details. Bug: T142080 Bug: T232672 Bug: T21195 Bug: T34675 Bug: T154774 Change-Id: I1462edc1701278760fa695308007006868b249fc Depends-On: I10011be060fe6d27c7527312ad41218786b3f40d
325 lines
10 KiB
PHP
325 lines
10 KiB
PHP
<?php
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/**
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* Copyright © 2015 Wikimedia Foundation and contributors
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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* http://www.gnu.org/copyleft/gpl.html
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*
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* @file
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*/
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use MediaWiki\MediaWikiServices;
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use MediaWiki\ParamValidator\TypeDef\UserDef;
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use MediaWiki\Revision\RevisionRecord;
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/**
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* Query module to enumerate all revisions.
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*
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* @ingroup API
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* @since 1.27
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*/
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class ApiQueryAllRevisions extends ApiQueryRevisionsBase {
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public function __construct( ApiQuery $query, $moduleName ) {
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parent::__construct( $query, $moduleName, 'arv' );
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}
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/**
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* @param ApiPageSet|null $resultPageSet
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* @return void
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*/
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protected function run( ApiPageSet $resultPageSet = null ) {
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$db = $this->getDB();
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$params = $this->extractRequestParams( false );
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$services = MediaWikiServices::getInstance();
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$revisionStore = $services->getRevisionStore();
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$result = $this->getResult();
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$this->requireMaxOneParameter( $params, 'user', 'excludeuser' );
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$tsField = 'rev_timestamp';
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$idField = 'rev_id';
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$pageField = 'rev_page';
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if ( $params['user'] !== null ) {
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// The query is probably best done using the actor_timestamp index on
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// revision_actor_temp. Use the denormalized fields from that table.
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$tsField = 'revactor_timestamp';
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$idField = 'revactor_rev';
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$pageField = 'revactor_page';
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}
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// Namespace check is likely to be desired, but can't be done
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// efficiently in SQL.
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$miser_ns = null;
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$needPageTable = false;
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if ( $params['namespace'] !== null ) {
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$params['namespace'] = array_unique( $params['namespace'] );
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sort( $params['namespace'] );
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if ( $params['namespace'] != $services->getNamespaceInfo()->getValidNamespaces() ) {
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$needPageTable = true;
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if ( $this->getConfig()->get( 'MiserMode' ) ) {
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$miser_ns = $params['namespace'];
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} else {
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$this->addWhere( [ 'page_namespace' => $params['namespace'] ] );
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}
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}
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}
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if ( $resultPageSet === null ) {
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$this->parseParameters( $params );
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$revQuery = $revisionStore->getQueryInfo( [ 'page' ] );
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} else {
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$this->limit = $this->getParameter( 'limit' ) ?: 10;
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$revQuery = [
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'tables' => [ 'revision' ],
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'fields' => [ 'rev_timestamp', 'rev_id' ],
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'joins' => [],
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];
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if ( $params['generatetitles'] ) {
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$revQuery['fields'][] = 'rev_page';
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}
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if ( $params['user'] !== null || $params['excludeuser'] !== null ) {
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$actorQuery = ActorMigration::newMigration()->getJoin( 'rev_user' );
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$revQuery['tables'] += $actorQuery['tables'];
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$revQuery['joins'] += $actorQuery['joins'];
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}
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if ( $needPageTable ) {
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$revQuery['tables'][] = 'page';
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$revQuery['joins']['page'] = [ 'JOIN', [ "$pageField = page_id" ] ];
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if ( (bool)$miser_ns ) {
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$revQuery['fields'][] = 'page_namespace';
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}
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}
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}
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// If we're going to be using actor_timestamp, we need to swap the order of `revision`
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// and `revision_actor_temp` in the query (for the straight join) and adjust some field aliases.
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if ( $idField !== 'rev_id' && isset( $revQuery['tables']['temp_rev_user'] ) ) {
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$aliasFields = [ 'rev_id' => $idField, 'rev_timestamp' => $tsField, 'rev_page' => $pageField ];
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$revQuery['fields'] = array_merge(
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$aliasFields,
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array_diff( $revQuery['fields'], array_keys( $aliasFields ) )
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);
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unset( $revQuery['tables']['temp_rev_user'] );
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$revQuery['tables'] = array_merge(
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[ 'temp_rev_user' => 'revision_actor_temp' ],
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$revQuery['tables']
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);
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$revQuery['joins']['revision'] = $revQuery['joins']['temp_rev_user'];
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unset( $revQuery['joins']['temp_rev_user'] );
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}
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$this->addTables( $revQuery['tables'] );
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$this->addFields( $revQuery['fields'] );
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$this->addJoinConds( $revQuery['joins'] );
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// Seems to be needed to avoid a planner bug (T113901)
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$this->addOption( 'STRAIGHT_JOIN' );
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$dir = $params['dir'];
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$this->addTimestampWhereRange( $tsField, $dir, $params['start'], $params['end'] );
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if ( $this->fld_tags ) {
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$this->addFields( [ 'ts_tags' => ChangeTags::makeTagSummarySubquery( 'revision' ) ] );
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}
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if ( $params['user'] !== null ) {
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$actorQuery = ActorMigration::newMigration()
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->getWhere( $db, 'rev_user', $params['user'] );
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$this->addWhere( $actorQuery['conds'] );
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} elseif ( $params['excludeuser'] !== null ) {
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$actorQuery = ActorMigration::newMigration()
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->getWhere( $db, 'rev_user', $params['excludeuser'] );
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$this->addWhere( 'NOT(' . $actorQuery['conds'] . ')' );
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}
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if ( $params['user'] !== null || $params['excludeuser'] !== null ) {
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// Paranoia: avoid brute force searches (T19342)
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if ( !$this->getPermissionManager()->userHasRight( $this->getUser(), 'deletedhistory' ) ) {
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$bitmask = RevisionRecord::DELETED_USER;
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} elseif ( !$this->getPermissionManager()
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->userHasAnyRight( $this->getUser(), 'suppressrevision', 'viewsuppressed' )
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) {
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$bitmask = RevisionRecord::DELETED_USER | RevisionRecord::DELETED_RESTRICTED;
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} else {
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$bitmask = 0;
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}
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if ( $bitmask ) {
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$this->addWhere( $db->bitAnd( 'rev_deleted', $bitmask ) . " != $bitmask" );
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}
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}
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if ( $params['continue'] !== null ) {
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$op = ( $dir == 'newer' ? '>' : '<' );
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$cont = explode( '|', $params['continue'] );
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$this->dieContinueUsageIf( count( $cont ) != 2 );
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$ts = $db->addQuotes( $db->timestamp( $cont[0] ) );
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$rev_id = (int)$cont[1];
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$this->dieContinueUsageIf( strval( $rev_id ) !== $cont[1] );
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$this->addWhere( "$tsField $op $ts OR " .
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"($tsField = $ts AND " .
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"$idField $op= $rev_id)" );
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}
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$this->addOption( 'LIMIT', $this->limit + 1 );
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$sort = ( $dir == 'newer' ? '' : ' DESC' );
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$orderby = [];
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// Targeting index rev_timestamp, user_timestamp, usertext_timestamp, or actor_timestamp.
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// But 'user' is always constant for the latter three, so it doesn't matter here.
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$orderby[] = "rev_timestamp $sort";
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$orderby[] = "rev_id $sort";
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$this->addOption( 'ORDER BY', $orderby );
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$hookData = [];
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$res = $this->select( __METHOD__, [], $hookData );
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if ( $resultPageSet === null ) {
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$this->executeGenderCacheFromResultWrapper( $res, __METHOD__ );
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}
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$pageMap = []; // Maps rev_page to array index
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$count = 0;
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$nextIndex = 0;
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$generated = [];
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foreach ( $res as $row ) {
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if ( $count === 0 && $resultPageSet !== null ) {
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// Set the non-continue since the list of all revisions is
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// prone to having entries added at the start frequently.
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$this->getContinuationManager()->addGeneratorNonContinueParam(
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$this, 'continue', "$row->rev_timestamp|$row->rev_id"
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);
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}
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if ( ++$count > $this->limit ) {
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// We've had enough
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$this->setContinueEnumParameter( 'continue', "$row->rev_timestamp|$row->rev_id" );
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break;
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}
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// Miser mode namespace check
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if ( $miser_ns !== null && !in_array( $row->page_namespace, $miser_ns ) ) {
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continue;
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}
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if ( $resultPageSet !== null ) {
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if ( $params['generatetitles'] ) {
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$generated[$row->rev_page] = $row->rev_page;
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} else {
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$generated[] = $row->rev_id;
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}
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} else {
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$revision = $revisionStore->newRevisionFromRow( $row, 0, Title::newFromRow( $row ) );
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$rev = $this->extractRevisionInfo( $revision, $row );
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if ( !isset( $pageMap[$row->rev_page] ) ) {
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$index = $nextIndex++;
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$pageMap[$row->rev_page] = $index;
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$title = Title::newFromLinkTarget( $revision->getPageAsLinkTarget() );
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$a = [
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'pageid' => $title->getArticleID(),
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'revisions' => [ $rev ],
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];
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ApiResult::setIndexedTagName( $a['revisions'], 'rev' );
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ApiQueryBase::addTitleInfo( $a, $title );
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$fit = $this->processRow( $row, $a['revisions'][0], $hookData ) &&
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$result->addValue( [ 'query', $this->getModuleName() ], $index, $a );
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} else {
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$index = $pageMap[$row->rev_page];
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$fit = $this->processRow( $row, $rev, $hookData ) &&
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$result->addValue( [ 'query', $this->getModuleName(), $index, 'revisions' ], null, $rev );
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}
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if ( !$fit ) {
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$this->setContinueEnumParameter( 'continue', "$row->rev_timestamp|$row->rev_id" );
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break;
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}
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}
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}
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if ( $resultPageSet !== null ) {
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if ( $params['generatetitles'] ) {
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$resultPageSet->populateFromPageIDs( $generated );
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} else {
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$resultPageSet->populateFromRevisionIDs( $generated );
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}
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} else {
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$result->addIndexedTagName( [ 'query', $this->getModuleName() ], 'page' );
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}
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}
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public function getAllowedParams() {
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$ret = parent::getAllowedParams() + [
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'user' => [
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ApiBase::PARAM_TYPE => 'user',
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UserDef::PARAM_ALLOWED_USER_TYPES => [ 'name', 'ip', 'id', 'interwiki' ],
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UserDef::PARAM_RETURN_OBJECT => true,
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],
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'namespace' => [
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ApiBase::PARAM_ISMULTI => true,
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ApiBase::PARAM_TYPE => 'namespace',
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ApiBase::PARAM_DFLT => null,
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],
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'start' => [
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ApiBase::PARAM_TYPE => 'timestamp',
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],
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'end' => [
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ApiBase::PARAM_TYPE => 'timestamp',
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],
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'dir' => [
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ApiBase::PARAM_TYPE => [
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'newer',
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'older'
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],
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ApiBase::PARAM_DFLT => 'older',
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ApiBase::PARAM_HELP_MSG => 'api-help-param-direction',
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],
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'excludeuser' => [
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ApiBase::PARAM_TYPE => 'user',
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UserDef::PARAM_ALLOWED_USER_TYPES => [ 'name', 'ip', 'id', 'interwiki' ],
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UserDef::PARAM_RETURN_OBJECT => true,
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],
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'continue' => [
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ApiBase::PARAM_HELP_MSG => 'api-help-param-continue',
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],
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'generatetitles' => [
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ApiBase::PARAM_DFLT => false,
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],
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];
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if ( $this->getConfig()->get( 'MiserMode' ) ) {
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$ret['namespace'][ApiBase::PARAM_HELP_MSG_APPEND] = [
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'api-help-param-limited-in-miser-mode',
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];
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}
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return $ret;
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}
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protected function getExamplesMessages() {
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return [
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'action=query&list=allrevisions&arvuser=Example&arvlimit=50'
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=> 'apihelp-query+allrevisions-example-user',
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'action=query&list=allrevisions&arvdir=newer&arvlimit=50'
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=> 'apihelp-query+allrevisions-example-ns-any',
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];
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}
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public function getHelpUrls() {
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return 'https://www.mediawiki.org/wiki/Special:MyLanguage/API:Allrevisions';
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}
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}
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